Fish care starts with creating a stable, clean aquatic environment tailored to the species you keep. Cycle the aquarium before adding fish, establish robust biological filtration, and test water regularly for ammonia, nitrite, nitrate, pH, and hardness. Match temperature to your fish’s natural range with a reliable heater and thermometer, and perform consistent partial water changes to maintain clarity and mineral balance. Choose compatible tank mates and avoid overstocking to reduce stress and aggression. Feed varied, species-appropriate diets in small portions that fish consume within a few minutes, removing leftovers to prevent waste buildup. Provide plants, caves, or driftwood for shelter and natural behavior, and ensure gentle, well-oxygenated flow. Quarantine new arrivals to limit disease introduction, observe daily for signs of illness or stress, and act promptly with evidence-based treatments. Maintain a regular light cycle, clean equipment carefully, and document parameters and maintenance so your fish thrive with long-term health and vibrant colour.
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